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Finding the Fourth Proportional to 328,520.80, 453,358.32 and 177,617.44

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Solution

The fourth proportional to 328,520.80, 453,358.32 and 177,617.44 is: 245,111.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,520.80 : 453,358.32 = 177,617.44 : x
  2. Step 2: Convert to fraction form
    328,520.80/453,358.32 = 177,617.44/x
  3. Step 3: Cross multiply
    328,520.80x = 453,358.32 × 177,617.44
  4. Step 4: Simplify right side
    328,520.80x = 80,524,344,201.10
  5. Step 5: Solve for x
    x = 80,524,344,201.10/328,520.80
  6. Step 6: Final answer
    x = 245,111.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.